Wrench.



No. 782,018. PATENTED FEB. 7, 1905.

. A. FARLEY.

WRENCH.

APPLICATION FILED OCT. 4, 1904 UNITED STATES Patented February '7, 1905.

AMOS FARLEY, OF PITCAIRN, PENNSYLVANIA.

WRENCH.

SPECIFICATION forming part of Letters Patent No. 782,018, dated February'7, 1905.

Application filed October 4, 1904. Serial No. 227.097.

of Pennsylvania, have invented certain new and useful Improvements inI/Vrenches, of which the following-is a specification, reference beinghad therein to the accompanying draw- I lugs.

This invention relates to certain new and useful improvements inwrenches, and more particularly to that type commonly known asmonkey-wrenches.

The invention has for its object to provide a quick adjustment forwrenches wherein a movable jaw is slidably mounted upon the toothedshank.

Another object of this invention is to con struct a wrench upon assimple lines as possible to maintain a strong and durable wrench, and tothis end I have embodied such features of construction that will reducethe expense of manufacture to a minimum.

Briefly described, my improved wrench comprises a toothed shank havingan integral jaw or head and a handle. Upon the shank I mount a slidingjaw, which is provided with a spring-pressed tooth that is normallyadapted to engage the shank of the wrench, and I provide a novel form ofgrip in connection with this jaw whereby the same may be quickly andfirmly adjusted to any desired position upon the shank.

The above construction will be hereinafter more fully described and thenspecifically pointed out in the claims, and referring to the drawingsaccompanying this application like numerals of reference designatecorresponding parts throughout the several views, in which Figure 1 is aside elevation of my improved wrench. Fig. 2 is a similar view of aportion of the same, showing the adjustable jaw in vertical section; andFig. 3 is atransverse sectional view taken on the line :0 a? of Fig. 1.

To put my invention into practice, I employ a shank 1, which is providedwith teeth 2 upon its rear edge, and formed integral with the one end ofsaid shank is a fixed head or jaw 3,

5 while upon the other end is detachably secured a handle 1. Theadjustable jaw is designated by the reference-numeral 5, and said jaw iscut away, as indicated at 6, forming an opening through which the shankof the wrench passes, and the jaw is further cut away, as indicated at7, to reduce the weight of the same. Pivoted to the sides of the jaw, asindicated at 8, is a grip 9, this grip being formed substantiallyU-shaped, and the sides of said grip are sheared away, as indicated at10, to reduce the weight and expense of manufacture of the same. In thesides of the grip is pivoted by a pin 11 the toothed member 12, and uponthe rear face of this member is secured, as indicated at 14:, a spring15, the lower end of which is adapted to rest against a strap 16, thatsurrounds the shank 1 and guides the sliding jaw in its movement uponsaid shank.

The operation of my improved wrench and the manner of quickly adjustingthe sliding jaw is as follows: The spring 15 of the grip is adapted tonormally hold the toothed member 12 in engagement with the teeth 2 ofthe shank 1, and to adjust the jaw the grip 9 is grasped and moveddownwardly toward the handle. As the grip is pivoted, as indicated at 8,to the sides of the slidingjaw, the downward movement of the grip willcause said grip to swing upon its pivot, which, owing to the toothedmember 12 being pivoted in said grip off the center of the pivot of saidgrip, the toothed member 12 will be carried out of engagement with theteeth of the shank, and as long as the grip is held in this position thejaw may be adjusted upon the shank 1. l/Vhen the grip is released, thespring 15 will return the grip and the toothed member 12 to its normalposition in engagement with said shank.

WVhile I have herein shown the preferred manner of constructing myimproved wrench, it is obvious that various changes may be made in thedetails ofconstruction without departing from the spirit and scope ofthe invention.

What I claim as new, and desire to secure by Letters Patent, is

l. A wrench comprising a toothed shank having an integral head and ahandle, a jaw slidably mounted upon said shank, a grip pivtoothed membermounted in said grip, and a spring carried by said toothed member andbearing against the rear surface of the sliding jaw and adapted tonormally hold said member in engagement with said shank, substantiallyas described.

In testimony whereof I affix my signature in the presence of twoWitnesses.

AMOS FARLEY. WVitnesses:

E. E. POTTER, K. H. BUTLER.

